The Ancient Shield is great for shield surfing. It will glide on slopes that other shields won't. I always carry one just for surfing.
Edit: oh wait, that's probably why you were talking about the shield here? Because the first post of this page talks about it.

If you watch or skip a cutscene, Stamina and Rune recharge immediately resets. This means you can double Stasis or Insta-bomb by skipping through a memory. It can be used in mid air while Stasis-launching to fly super fast.

End is simply another word for beginning.And beginning another for end.

Also, I haven't tested it, but if you throw a boomerang as high as it can go, immediately go forward then to the left. The boomerang should start spinning around you in circles, slowly shrinking. You can walk around and it will keep revolving around with you as the centre. Be careful of the boomerang hitting something, or the physics engine will stop it.
Apparently it can also be achieved by riding quickly on a horse, throwing the boomerang, not catching and jumping off the horse just after it flies past. Take care not to hit your horse though!

End is simply another word for beginning.And beginning another for end.

Not like a horse though. You temporarily mount them and stab them in the back until they throw you off. As this does not reduce your weapon durability, it's the way players can defeat the White Lynel on the Great Plateau in Master Mode without having their strongest weapon break.